Moon Cerberus Rechargable Rear Light

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The Moon Cerberus Rechargable Rear Light combines the technology of the Moon Comet X (Now with three LED strips) into a 270 degree performance light. It's ideal for road bikes as it can fit all styles of seatpost including aero shaped posts. Weighing just 35 grams it can be used as a daytime running light or for added visibility at night.


  • Mode1 25lm 33hr
  • Variable Lumen System
  • Rubber pad: (fits AREO/ ISP PROPEL / Standard)
  • Mode2 5lm 145hr
  • FL1 25lm 215hr
  • Steady FL 25lm 1345hr Day FL 15lm 19hr
  • Rechargeable lithium polymer battery
  • Auto safe mode
  • Lock mode
  • Light mode memory

Bike Lights - How Many Lumen Do You Need?

Bike lights are rated in Lumens. A Lumen is the measurement of the total visible light emitted and is commonly used for all kinds of bulbs.

One thing worth noting is that most lights advertise their headline rate. Packaging may say 1000 lumens. Reading the small print they might only do that for an hour. That light may run 500 or 600 lumens for 2 or 3 hours. So it's worth buying a light with more lumens than you need to get decent running times.

There is no fixed agreement on how many Lumens you need for a bike light as it depends on the type of cycling you are doing. As a rough guide we say that:

  • Daytime running lights = 100+ Lumens
  • Urban commuting lights = 50 to 200 Lumens
  • Rural riding lights = 400 to 600 Lumens
  • Trail riding lights = 600+ Lumens

Price Match at Cycles uk

We understand that price is important, so we regularly price-check our competitors to make sure we have the best offers available. We recognise that we will not always be the cheapest, so if you see the same product cheaper from any of our competitors then please get in touch via the form below and we will do our best to match any reasonable advertised price.

Brand Moon
Barcodes 4897029983850
SKUs / Part Numbers COMET-AR

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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